ArticleRadiology case reports2025
When stroke hides: A case of negative diffusion MRI.
Article in Radiology case reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Limitations and Blind Spots of Diffusion-Weighted Imaging in the Evaluation of Acute Brain Ischemia: A Narrative Review.Journal of clinical medicine · 2026Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ischemic stroke is a medical emergency that's typically identified early using MRI, particularly with diffusion-weighted imaging (DWI). However, some rare but important cases present without the usual DWI findings, posing a diagnostic challenge. We describe the case of a 75-year-old woman with a history of hypertension and diabetes who woke up with weakness on her left side and facial asymmetry. Her initial brain MRI showed no abnormalities on DWI, but ASL imaging revealed reduced perfusion in the right hemisphere, and MR angiography identified an occlusion of the right internal carotid artery. Follow-up CT and MRI scans later confirmed a large right-sided infarct. This case underscores the value of multimodal imaging and the importance of repeating MRI when clinical suspicion for stroke remains high, even if the initial scan appears normal.
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Registered trials
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